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Allowance for Loan and Lease Losses - Recorded Investment and Related Allowance (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Originated Loans and Leases |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | $ 8,048 | $ 7,303
Unpaid Principal Balance With No Related Allowance | 8,462 | 7,844
Recorded Investment With Related Allowance | 3,630 | 6,864
Unpaid Principal Balance With Related Allowance | 3,730 | 6,864
Related Allowance | 900 | 3,762
Recorded Investment | 11,678 | 14,167
Unpaid Principal Balance | 12,192 | 14,708
Total Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Related Allowance | 0 | 0
Recorded Investment | 3,504 | 3,438
Unpaid Principal Balance | 3,689 | 3,652
Commercial and industrial | Originated Loans and Leases | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 1,174 | 183
Unpaid Principal Balance With No Related Allowance | 1,374 | 271
Recorded Investment With Related Allowance | 596 | 5,183
Unpaid Principal Balance With Related Allowance | 696 | 5,183
Related Allowance | 300 | 3,365
Commercial and industrial | Total Acquired Loans | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 12 | 32
Unpaid Principal Balance With No Related Allowance | 12 | 32
Related Allowance | 0 | 0
Commercial real estate | Originated Loans and Leases | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 2,904 | 3,205
Unpaid Principal Balance With No Related Allowance | 2,904 | 3,405
Recorded Investment With Related Allowance | 3,034 | 1,681
Unpaid Principal Balance With Related Allowance | 3,034 | 1,681
Related Allowance | 600 | 397
Commercial real estate | Total Acquired Loans | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 861 | 842
Unpaid Principal Balance With No Related Allowance | 943 | 924
Related Allowance | 0 | 0
Residential real estate | Originated Loans and Leases | Home equity |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 3,970 | 3,915
Unpaid Principal Balance With No Related Allowance | 4,184 | 4,168
Residential real estate | Total Acquired Loans | Home equity |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 2,631 | 2,564
Unpaid Principal Balance With No Related Allowance | 2,734 | 2,696
Related Allowance | $ 0 | $ 0

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